A small section of a chromosome that is the basic unit for the transmission of heredity is a _____.
A) chromosome
B) gene
C) genotype
D) zygote

Question

Quizplus · Accepted Answer

A gene is the basic unit of heredity and is a small section of a chromosome that contains the instructions for a specific trait. Chromosomes contain many genes, and their arrangement and expression determine an individual's genotype and phenotype. A zygote is a fertilized egg cell formed by the fusion of sperm and egg nuclei, and a chromosome is a thread-like structure that carries genetic information.

A Small Section of a Chromosome That Is the Basic